| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a watering tube which suppresses dispersion in the amount of water supply for each water supply hole. <P>SOLUTION: The watering tube includes: a main pipe 10 which has a liquid conveying passage 11; and a branch pipe 20 which is provided at a periphery of the main pipe 10 and has a communicating hole 21 provided between the liquid conveying passage 11 and the main pipe, a water supply hole 22 which is headed toward the outside, and a water supply channel 23 which extends between the communicating hole 21 and the water supply hole 22. A plurality of the communicating holes 21 are arranged with fixed spacings along with a longitudinal direction L of the liquid conveying passage 11. The inner diameter of the liquid conveying passage 11 varies along with the longitudinal direction L. <P>COPYRIGHT: (C)2012,JPO&INPIT |
